`Header` has a little extra functionality on top of what `Path`, `Query` and `Cookie` provide.

Most of the standard headers are separated by a "hyphen" character, also known as the "minus symbol" (`-`).

But a variable like `user-agent` is invalid in Python.

So, by default, `Header` will convert the parameter names characters from underscore (`_`) to hyphen (`-`) to extract and document the headers.

          # metadata. gcr.io helpfully includes it in the header of the response
          # as docker-content-digest: sha256:[digest]. Note we use egrep to
          # match exactly sha256:<hash> because curl may include a ^M symbol at
          # the end of the line.
          # See https://cloud.google.com/architecture/using-container-images#exploring_image_manifests_digests_and_tags
          echo -n "Trying to map name $1 to tag $2... "

            <encoding>UTF-8</encoding>
            <docencoding>UTF-8</docencoding>
            <charset>UTF-8</charset>
            <additionalOptions>
              <additionalOption>-XDignore.symbol.file</additionalOption>
              <additionalOption>-Xdoclint:-html</additionalOption>
            </additionalOptions>
            <source>8</source>
          </configuration>
          <executions>

            <encoding>UTF-8</encoding>
            <docencoding>UTF-8</docencoding>
            <charset>UTF-8</charset>
            <additionalOptions>
              <additionalOption>-XDignore.symbol.file</additionalOption>
              <additionalOption>-Xdoclint:-html</additionalOption>
            </additionalOptions>
            <source>8</source>
          </configuration>
          <executions>

# configure script unconditionally); otherwise if it is false or undefined, the
# build is static and TensorFlow symbols (in Python only) are loaded into the
# global symbol table in order to support op registration. This means that
# projects building with Bazel and importing TensorFlow as a dependency will not
# depend on libtensorflow_framework.so unless they opt in.
tf_cc_shared_library(

# errors.
# There is ongoing work on Bazel team's side to provide support for transitive
# shared libraries. As part of migrating to transitive shared libraries, we
# hope to provide a better mechanism for control over symbol exporting, and
# then tackle this issue again.
#
# TODO: Remove the following two lines once TF doesn't depend on Bazel wrapping
# all library archives in -whole_archive -no_whole_archive.

	for i := 0; i < len(s); {
		r, wid := utf8.DecodeRune(s[i:])
		r = mapping(r)
		if r >= 0 {
			b = utf8.AppendRune(b, r)
		}
		i += wid
	}
	return b
}

// Despite being an exported symbol,
// Repeat is linknamed by widely used packages.
// Notable members of the hall of shame include:
//   - gitee.com/quant1x/num
//
// Do not remove or change the type signature.
// See go.dev/issue/67401.
//

    `tf.distribute.experimental.ParameterServerStrategy`:
    *   Replaces the existing
        `tf.distribute.experimental.ParameterServerStrategy` symbol with a new
        class that is for parameter server training in TF2. Usage of the old
        symbol, usually with Estimator API, should be **replaced** with
        [`tf.compat.v1.distribute.experimental.ParameterServerStrategy`].

verifying keys, by enabling the Alpha `ExternalServiceAccountTokenSigner` feature gate and specifying `--service-account-signing-endpoint`. The flag value can either be the location of a Unix domain socket on a filesystem, or be prefixed with an @ symbol and name a Unix domain socket in the abstract socket namespace. ([#128190](https://github.com/kubernetes/kubernetes/pull/128190), [@HarshalNeelkamal](https://github.com/HarshalNeelkamal)) [SIG API Machinery, Apps, Auth, Etcd, Instrumentation, Node,...

- Kube-controller-manager...